參數(shù)資料
型號: MLX90215EVA-AAA-106-BU
廠商: Melexis Technologies NV
文件頁數(shù): 22/46頁
文件大?。?/td> 498K
描述: IC SENSOR PROG LINEAR HALL 4SIP
產(chǎn)品目錄繪圖: MLX90215, PTC-04 Series Side
標(biāo)準(zhǔn)包裝: 1,000
傳感范圍: 無限制
類型: 線性 - 可編程
電源電壓: 4.5 V ~ 5.5 V
電流 - 電源: 6.5mA
電流 - 輸出(最大): 2mA
輸出類型: 模擬,比率
特點(diǎn): 穩(wěn)壓電壓
工作溫度: -40°C ~ 85°C
封裝/外殼: 4-SIP
供應(yīng)商設(shè)備封裝: 4-SIP
包裝: 散裝
產(chǎn)品目錄頁面: 2792 (CN2011-ZH PDF)
其它名稱: 90215DB106
MLX90215EVA
MLX90215EVA-ND
Section 3 - Applications
3-30
Graph 2, Slide-by Method with Magnet A Steep Slope vs. Shallow Slope
Tolerances Build-up
The following examples incorporate many different factors in order to show how tolerance buildup can
affect a Hall Effect system. Air gap tolerance, temperature range, and the temperature coefficient of the
magnet will cause the activation distance of a US5881 EUA to vary, thus impacting switching accuracy.
Tolerances:
Air gap Tolerance = 3mm. +
1 mm. and 6mm. +
1mm.
US5881EUA B
OP
/B
RP
Range = 95G min. B
RP
to 300G max. B
OP
(IC Temperature Selection (EUA) = -40
o
C to 85
o
C)
Temperature Range = -40
o
C to 85
o
C
Magnet Temp. Coefficient = -0.1098%/
o
C
The US5880 Hall-Effect Switch has a maximum BOP of 250 Gauss and a minimum BRP of 140 Gauss.
If this part were to be actuated by sample Magnet B at an air gap of 3mm and 6mm, the following results
would occur (See Graphs 3 and 4). Each graph has an air gap tolerance of +
1mm which could be due to
a loosely fitted mechanical assembly. Notice the difference in distance and slope between Graphs 3 and
4.
Graph 3, Slide-by With Magnet A, Shallow Slope
Graph 2 shows what
happens to the slope of a
flux density vs. distance
graph by using different air
gaps with the same magnet
configuration.
Distance (mm)
  1 2 3 4 5 6 7 8 9 10
400
200
0
600
800
1000
1200
Air Gap = 2.5mm
Air Gap = 5mm
0
200
400
600
800
1000
0
2
4
6
8
10
12
14
16
18
20
Distance (mm)
Air Gap = 5 mm
Air Gap = 6 mm
Air Gap = 7 mm
Always "OFF"
Always "ON"
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